Lip-turning machine.



F. H. PERRY.

LIP TURNING MACHINE.

APPLICATION FILED MAR. 3. I911- RENEWED JUNE 29,1915.

1,173;381. Patented Feb.29, 1916.

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@NIT s FREDERICK H. PERRY, OE

BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

LIP-TURNING MACHINE.

Application filed March 3, 1911, Serial No. 612,049. Renewed ifune 29, 1915. Serial No. 37,123.

To all to ham itmag concern Be it known that I, FREDERICK H. PERRY, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Lip-Turning Machines; and I do hereby declare the following to be a full, clear, andeXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to lip turning machines for operating on lipped insoles.

In the manufacture of boots and shoes in which a lipped insole is used, considerable difficulty is encountered in making the lip upstand properly along the shank where the insole is bent in attaching the same to the In order to obviate this difliculty, it is customary to slash the lip transversely from its top to its base at certain places along the shank. This slashing operation has hitherto, as far as I am advised, been performed by hand and has required the services of a skilled operator. However, even with the exercise of considerable skill and care, it frequently happens that the slashes are not made suliiciently deep, or that they extend through the lip into the body of the insole and seriously weaken the same. It is undesirable to slash the lip except .at the points where slashes are necessary, since the slashes weaken the lip, and since, in the sewing operation. the needle often penetrates the lip at one of the slashes and the thread then easily pulls out through theslash.

The primary "object of the present invention is to provide a lip turning machine comprising lip slashin means so constructed and arranged that the lip :can be slashed from its edge :to its base at any desired points in :an accurate and satisfactory .manner and more quickly than can be done by hand. and left unslashed .at other points.

lNith the above object in view, my invention com rises a lip turning machine :provided with means to cut slashes completely through the lip of the insole as the insole is fed through the :machine.

A feature of my invention contemplates the provision of means to throw the lip e eseats? during the continued operation of themacghine.

further feature contemplates the pro- VlSlOIl of a lip slashing knife arranged to move substantially in a line perpendicular to the work support adjacent the plow of the lip turning tool .to slash the lip while the lip is held in upturned position by said tool.

'.Other features of the invention consist in certain improved constructions, combinations and arrangements .of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the following description.

A machine embodying the present invention in its preferred form is illustrated in the accompanying drawings, in which, Figure 1 is a side elevation thereof; F ig. 2 is a partial rear elevation; Fig. 3 is a partial plan view, .and Fig. .4 isa partial front .elevation.

In the drawings, I have shown a lip slashing :mechanism applied to a lip turning machine of the type illustrated in the United States patent to I-Iadaway No. 638,010.

The frame 1. the rotating work support 2, the bearing .3 therefor, the feed wheel a, the gearing .mechanism for rotating said work support :and said feed wheel, the presser foot 5. and means for supporting the same, the lip retaining tool 50, the lip turning tool 6 provided with .a plow '60 for turning the lip, the lip settingtool 7 mounted on the slide 8, the guide 9 therefor, and mechanism for reciprocating said slide, and the main shaft 10, are constructed. arranged and opera-ted substantially as illustrated and described in the patent to Hadaway above referred to. and further description of said parts is therefore deemed unnecessarv.

In the illustrative embodiment of mv invention, I have mounted a lip slashing knife indicated at 21 upon one arm 19 of a twoar-med oscillatory lever 12 pivoted upon an extension of the shaft 11 which supports the presser foot lever. The arm 19 of the said lever extends forwardly over the surface of the work support and the slashing .knife is .mounted .on the extremity of this arm. The length and form .of the farm 19 is such that ,the slashing knife is arranged to .move

anrl'zto of th glo Patented'Feb. 29, 191 6.

the lip turning tool between said tool and the lip setting tool 7, as shown in Fig. 4 of the drawing. The lever 12 is designed to be oscillated by suitable mechanism to move the slashing knife toward and from the work support. The slashing knife is arranged to move substantially in a line perpendicular to the surface of the work and support upon the edge of the upturned lip to cut a slash in said lip from the edge to the base thereof while the said lip is held and fixed in upturned position respectively by the lip turning tool and the lip setting tool. The lip retaining tool 50. also assists in supporting the lip during the slashing operation.

The slashing knife is adjustably mounted in a dove-tailed groove 20 in the extremity of the arm 19. The said extremity is slotted at 22 and a bolt 23 is provided to tighten and hold said knife in the groove 20. The adjustability of the slashing knife permits the depth of the slash given to the lip to be varied and renders the slashing mechanism adaptable to slash the lips of insoles of varying thicknesses. The other arm 13 of the lever 12 extends rearwardly over the shaft 24, on which the slide reciprocating lever is mounted, and is perforated to form a bearing for a spring pressed pin 14, the purpose of which will be presently described. The outward movement of said pin is limited by a head or shoulder 15. A coil spring 18 is attached at one extremity to a pin secured to the frame, and at the other to the arm 13 of lever 12. The arm 13 of said lever is further provided with a screw threaded perforation adapted to receive a set screw 16, the lower extremity of which strikes a stop 17 on the frame when the arm 13 is in its lowermost position, to limit the downward movement of said arm.

In order to allow the slashing knife to be thrown into and out of operation during the continued operation of the machine, the means for oscillating the lever 12 is adapted to be thrown into and out of operative position with respect to said lever. The lever oscillating means in the construction which I have adopted comprises a gear member 25 loosely journaled upon an extension of the shaft 24 on which the slide reciprocating lever is mounted so that the said gear member is permitted to slide longitudinally of said shaft. Said gear member is provided on its outer side with an extended hub 26 which is grooved circumferentially at 27. Upon its inner side the gear 25 is provided with an extension or hub 41, from which projects radially a wedge-shaped tooth 42. The position of the pin 14 on arm 13 is such that when the gear 25 is in its innermost position, the said pin will lie in the path of the tooth 42 on said gear. Thus when the said gear is in its innermost position, and rotation is imparted thereto in the direction indicated by the arrow in Fig. 1, the tooth will strike said pin and lift the arm 13 of lever 12. When said gear is in its outermost position, the pin 13 is out of the path of the tooth 42 on said gear. The said gear is normally held in its outermost position by means hereinafter described.

The main shaft 10 is provided with a. pinion 43 which meshes with the gear 25. The length of said pinion is such that the gear 25 in both its innermost and outermost positions is in mesh with said pinion. Said gear will therefore be continually rotated during the rotation of the main shaft 10. The gear 25 in the normal operation of the machine is rotated in the direction of the arrow in Fig. 1. The relative sizes of the gear 25 and the pinion 43 are such that the said gear makes one revolution to every six revolutions of said pinion.

In order to throw the slashing knife into operation to slash the lip at any desired point and to throw said knife out of operation to leave the lip unslashed at other points, I provide mechanism under the control of the operator to move the gear 25 inwardly along the shaft 11 to its innermost position and to return said gear to its outermost position. The preferred form of this mechanism as illustrated in the drawings is as follows :Below the shaft 24 and extending transversely thereof is a shaft 28 mounted in a bearing in a bracket 29 secured to the frame of the machine. Rigidly connected with one extremity of said shaft is a lever 30 which is connected at its extremity 31 with the spring member 32. Said spring member is attached at its other extremity to a foot treadle, not shown. 33 indicates a rod, one extremity 34 of which is pivotally connected with the lever 30. Said rod extends loosely through a perforated lug 35 on bracket 29, and is threaded to receive stop nuts 44. A. coil spring 37 encircles said rod and bears at one end against the lug 35 and at the other end against a shoulder on the rod 33 so that the lever 30 is thereby normally held in elevated position. The downward movement of the lever 30 is limited by an adjustable stop screw 38 threaded into a perforation in a lug on bracket 29 beneath said lever. Rigidly connected to the other extremity of the shaft 28 is a lever 36 extending upwardly from said shaft, one end of which is formed asa yoke 39 embracing the hub 26 of gear 25. A pin 40 projects inwardly from each arm of said yoke into the groove 27. Thus the gear 25 may be moved inwardly along the shaft 24 by depressing the foot treadle. The

said gear is returned to its outermost posi-' scribed, the insole, which has been previously slit around the edge, is placed in position above the work support 2, the edge of the feed wheel being inserted in the slit. The main shaft 10 is then started into operation and the rotation of the feed wheel and work support feeds the insole through the machine, the lip being turned up by the plow of the lip turner. When it is desired to slash any portion of the lip, the treadle is depressed, thereby sliding the gear 25 inwardly along the shaft 24:. This brings the extension 41 on gear 25 into such a position that the tooth 42 on said extension will, in its rotation, strike the pin lfl: on arm 13 of lever 12, and raise said arm. The arm 19 and knife 21 will be thereby depressed, and said knife will descend and strike the upturned lip of the insole and cut a slash therein. The arm 13 is again depressed after the tooth i2 passes the pin let by the action of spring 18. lVhile the foot treadle is held in depressed position, the slashing knife will be oscillated once for every revolution of the gear \Vhen the foot treadle is released, the coil spring 37 will elevate the lever 30, thereby sliding gear 25 outwardly, carrying the tooth 42 so that the pin 14 :is out of the path thereof. In case tooth 42 is opposite the pin i l at the instant the treadle is depressed to throw the lip slashing mechanism into operation, said pin will not interfere with the inward movement of the gear 25 but will be permitted to yield by the spring by which it is held in position. When the tooth 12 has moved past the pin 14 the said spring will cause the pin to snap into position behind the tooth and the pin will be maintained in position to engage the tooth when the gear 25 has made a further revolution.

While it is preferred to employ the specific construction and arrangement of parts shown and described, it will be understood t that this construction and arrangement is not essential except so far as specified in the claims and may be changed or modified without departing from the broader features of the invention.

It is to be noted that the lip cutting knife of the machine above described cuts completely through the lip so as to enable the lip to be readily upturned and permanently set in position, and that this mode of operation is rendered possible by the fact that means is provided for throwing the knife into and out of operation during the continued operation of the feeding means.

The machine above described is the first machine in the art for operating on insoles in which a knife is provided for cutting a transverse slash completely through the lip material throughout the major portion of its width, and in which the knife can be thrown intoand out of operation so that the lip of the insole may be provided at certain points only with such slashes. This feature of the invention, therefore, while preferably embodied in a machine in which the knife is a lip cutting knife is not limited thereto, but in its broader aspects contemplates the use of a knife arranged to cut a slash across that portion of the sole which forms the lip whether or not that portion of the sole has been formed into a lip at the time the knife acts thereon.

Having fully described the construction and operation of a preferred form of my invention, what I claim as my invention and desire to secure by Letters Patent is 1. A lip turning machine, having, in combination, work feeding means, lip turning and setting means, a lip slashing knife, means for actuating the knife to cut a slash completely through the lip, and means to throw the knife into and out of operation durin the continued operation of the feeding means, substantially as described.

2. A lip turning machine, having, in combination, lip turning means, a lip setting tool, means to actuate the lip setting tool to set the lip, a lip slashing knife, means to actuate the knife to cut a slash completely through the lip, and means to throw the knife into and out of operation during the continued operation of the lip setting tool, substantially as described.

3. A lip turning machine, having in combination, lip turning means, a lip setting tool, means for actuating the tool to set the lip, a lip slashing knife, means independent of the lip setting tool for supporting and actuating the knife, and means to throw the knife into and out of operation during the continued operation of the lip setting :tool, substantially as described.

4. A lip turning machine, having, in combination, lip turning and setting means acting continuously during the operation of the machine, a normally inactive lip slashing knife, and means for actuating the knife to cut a slash through the lip at any desired point in the lip, substantially as described.

5. A lip turning machine having, in combination, feeding means, a work support, lip turning means, a slashing knife positioned above said work support, a pivoted lever on which said knife is mounted, means to operate said lever, and means under the control of the operator to throw said lever operating means into and out of operative position with respect to said lever during the continued operation of the machine, substantially as described.

6. A lip turning machine having, in combination, work feeding means, a lip turning tool, a lip slashing knife, an oscillatory lever on which said lip slashing knife is mounted, a rotating cam member to operate said lever, means to rotate said cam member,

and means under the control of the operator to throw said cam member into and out of operative position with respect to said lever during the continued operation of the machine, substantially as described.

7. A lipturning machine, having, in combination, a Work support, a lip turning tool, a lip slashing knife arranged to act on the upturned lip after it is turned up by the lip turning tool, means for supporting the knife for movement substantially in a line per-' pendicular to the Work support, and means for operating the knife to slash the upturned lip, substantially as described.

8. A lip turning machine having, in combination, a lip turning tool having a plow for turning the lip, a work support, a lip slashing knife arranged to move substantially on a line'perpendicular to the surface of the work support adjacent the plow of the lip turning tool to slash the lip while held in upturned position by said lip turning tool, and means to actuate said knife, substantially as described.

9. A lip turning machine having, in combination, a work support, a lip turning tool having a plow for turning the lip, a lip setting tool mounted to the rear of said lip turning tool, a lip slashing knife arranged to move independently of said lip setting tool substantially on a line perpendicular to the surface of the work support between the plow of the lip turning tool and the lip setting tool to slash the lip, and means to actuate said knife, substantially as described.

10. A lip turning machine having, in combination, a work support, a lip turning tool having a plow for turning the lip, alip retaining tool, a lip slashing knife arranged the lip turning tool and the lipretaining .7

tool to slash the lip while held in upturned position by said tools, and means to actuate said knife, substantially as described.

11. A lip turning machine, having, in combination, lip turning and setting means acting continuously during the operation of the machine, a lip slashing knife, and means for actuating the knife to slash the lip at certain points and for rendering the knife inactive during the continued'operation of the machine.

12. The combination with means for supporting and feeding an insole of a knife arranged to cut transversely completely through the lip material throughout the major portion of its width, and means for throwing said knife into and out of operation during the continued operation of the feeding means.

a 13. The combination with means for sup-' porting and feeding an insole of lip turning means, a knife arranged to "cut transversely completely through the lip material throughout the major portion of its width, and means for throwing said knife into and out of operation during the continued operation of the feeding and lip turning means.

Witnesses:

NORMAN C. HUssEY, ELMER B. GRUsH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, 'Washington, D. C.

FREDERICK H. PERRY. 

